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@ARTICLE{Huesges:857738,
author = {Huesges, Zita and Schmalzl, Karin and Geibel, Christoph and
Brando, Manuel and Steglich, Frank and Stockert, Oliver},
title = {{R}obustness of magnons near the quantum critical point in
the heavy-fermion superconductor {C}e{C}u 2 {S}i 2},
journal = {Physical review / B},
volume = {98},
number = {13},
issn = {2469-9950},
address = {Woodbury, NY},
publisher = {Inst.},
reportid = {FZJ-2018-06706},
pages = {134425},
year = {2018},
abstract = {Paramagnons are supposed to provide the pairing glue for
unconventional superconductors. For the heavy-fermion
superconductor CeCu2Si2, there is indeed good evidence from
inelastic neutron scattering (INS) that spin fluctuations
drive the superconductivity. Here, we present the INS
measurement of the inelastic response of the
antiferromagnetic parent compound, ‘A-type’ CeCu2Si2, to
probe the relation to the excitations of the superconducting
(‘S-type') sample. We find that the dispersion is very
similar in the antiferromagnetic state and in the normal
state of the superconducting sample. Pronounced differences
to the response in the superconducting state exist at low
energies around the zone center. These findings are in line
with observations of other unconventional superconductors.},
cin = {JCNS-2 / PGI-4 / JARA-FIT / JCNS-ILL},
ddc = {530},
cid = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
$I:(DE-82)080009_20140620$ / I:(DE-Juel1)JCNS-ILL-20110128},
pnm = {144 - Controlling Collective States (POF3-144) / 524 -
Controlling Collective States (POF3-524) / 6212 - Quantum
Condensed Matter: Magnetism, Superconductivity (POF3-621) /
6213 - Materials and Processes for Energy and Transport
Technologies (POF3-621) / 6G4 - Jülich Centre for Neutron
Research (JCNS) (POF3-623)},
pid = {G:(DE-HGF)POF3-144 / G:(DE-HGF)POF3-524 /
G:(DE-HGF)POF3-6212 / G:(DE-HGF)POF3-6213 /
G:(DE-HGF)POF3-6G4},
experiment = {EXP:(DE-Juel1)ILL-IN12-20150421},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000447463700003},
doi = {10.1103/PhysRevB.98.134425},
url = {https://juser.fz-juelich.de/record/857738},
}